Paris police said Wednesday some 250 to 300 bottles, worth up to 1,000 euros ($1,200) each, were stolen from the cellar in the 6th arrondissement of Paris sometime between July 28 and Monday, while the owner was vacationing.

The robbers apparently broke through the wall of the basement cellar from the “Catacombs” network of tunnels under Paris. That they located the cellar so accurately from underground leads police to suspect the theft was carefully planned.